JP5979332B1 - Fluorine-containing alkylsilane compound and process for producing the same - Google Patents
Fluorine-containing alkylsilane compound and process for producing the same Download PDFInfo
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Abstract
一般式 CF3(CF2)n(CH2CF2)a(CF2CF2)b(CH2)3SiR3-dXd〔I〕(n：0〜5の整数、a：1または2、b：0〜3の整数、R：炭素数1〜3のアルコキシ基、含フッ素アルコキシ基またはアルケニル基、X：ハロゲン、d：0〜3の整数)で表される含フッ素アルキルシラン化合物。この含フッ素アルキルシラン化合物は、一般式 CF3(CF2)n(CH2CF2)a(CF2CF2)bCH2CH=CH2〔II〕(n、a、bは上記定義と同じ)で表されるポリフルオロアルキルアリル化合物を、遷移金属触媒の存在下で、アルコキシシランと反応させ、またはクロロシランと反応させた後低級アルコールまたは金属アルケニルと反応させることにより製造される。この製造法では、環境負荷の高い金属試薬を使用せず、ヒドロシリル化反応を行う前に原料化合物由来の遊離ヨウ素を除去することが可能であり、またハンドリング性も良好な含フッ素アルキルシラン化合物を与える。General formula CF3 (CF2) n (CH2CF2) a (CF2CF2) b (CH2) 3SiR3-dXd [I] (n: integer from 0 to 5, a: 1 or 2, b: integer from 0 to 3, R: carbon A fluorine-containing alkylsilane compound represented by an alkoxy group of formula 1 to 3, a fluorine-containing alkoxy group or an alkenyl group, X: halogen, d: an integer of 0 to 3. This fluorine-containing alkylsilane compound is a polyfluoroalkylallyl compound represented by the general formula CF3 (CF2) n (CH2CF2) a (CF2CF2) bCH2CH = CH2 [II] (n, a, and b are as defined above). In the presence of a transition metal catalyst, it is produced by reacting with alkoxysilane or reacting with chlorosilane and then reacting with lower alcohol or metal alkenyl. In this production method, a fluorine-containing alkylsilane compound that can remove free iodine derived from the raw material compound before the hydrosilylation reaction without using a metal reagent with a high environmental load, and also has good handling properties. give.
Description
本発明は、含フッ素アルキルシラン化合物およびその製造法に関する。さらに詳しくは、水との接触角の大きい含フッ素アルキルシラン化合物およびその製造法に関する。 The present invention relates to a fluorine-containing alkylsilane compound and a method for producing the same. More specifically, the present invention relates to a fluorine-containing alkylsilane compound having a large contact angle with water and a method for producing the same.
一般に、パーフルオロアルキル基を構造単位として有する化合物は、繊維、金属、ガラス、ゴム、樹脂等の各種基材の表面を化学処理することによって、表面改質性、撥水撥油性、離型性、防汚性、レベリング性などを向上させることが知られている。 In general, a compound having a perfluoroalkyl group as a structural unit is obtained by chemically treating the surface of various substrates such as fiber, metal, glass, rubber, resin, etc., thereby improving the surface modification, water / oil repellency, and releasability. It is known to improve antifouling properties and leveling properties.
その中でも、パーフルオロアルキル基の炭素数が8〜12のテロマー化合物において、これらの性能が最も発現し易く、炭素数8のテロマー化合物が好んで使用されている。 Among these, in the telomer compound having 8 to 12 carbon atoms in the perfluoroalkyl group, these performances are most easily exhibited, and the telomer compound having 8 carbon atoms is preferably used.
しかるに、近年炭素数8のパーフルオロオクタン酸あるいは炭素数が8を超えるパーフルオロカルボン酸は難分解性で、生体蓄積性が高く、生体毒性が疑われるなど環境に問題がみられるとの報告がなされている。これらの化合物の内、炭素数が8を超えるパーフルオロアルキル基を有する化合物は、環境中での生物的分解または化学的分解によって、パーフルオロオクタン酸または炭素数が8を超えるパーフルオロカルボン酸に変化する可能性が示唆されており、今後はその製造や使用が困難になることが懸念されている。ただし、パーフルオロアルキル基の炭素数が6以下の化合物にあっては、生体蓄積性が低いといわれている。 However, in recent years, it has been reported that perfluorooctanoic acid having 8 carbon atoms or perfluorocarboxylic acid having more than 8 carbon atoms is difficult to decompose, has high bioaccumulation potential, and is suspected to be biotoxic. Has been made. Among these compounds, compounds having a perfluoroalkyl group having more than 8 carbon atoms are converted into perfluorooctanoic acid or perfluorocarboxylic acid having more than 8 carbon atoms by biodegradation or chemical degradation in the environment. The possibility of change has been suggested, and there are concerns that its manufacture and use will become difficult in the future. However, compounds having a perfluoroalkyl group with 6 or less carbon atoms are said to have low bioaccumulation.
パーフルオロアルキル基の炭素数が6以下であって、水との接触角の大きい含フッ素アルキルシラン化合物も知られている。 Fluorine-containing alkylsilane compounds having a perfluoroalkyl group having 6 or less carbon atoms and a large contact angle with water are also known.
特許文献１には、RF(CH2CH2)a(CH2CF2)b(CF2CF2)cIとCH2=CHSi(R1)3-nXnとの付加反応によって得た化合物を還元剤によって還元して、末端-CH2CH2Si(R1)3-nXnを有する含フッ素アルキルシラン化合物を得る方法が記載されている。In Patent Document 1, it is obtained by an addition reaction between R F (CH 2 CH 2 ) a (CH 2 CF 2 ) b (CF 2 CF 2 ) c I and CH 2 = CHSi (R 1 ) 3-n X n. A method is described in which a fluorine-containing alkylsilane compound having a terminal —CH 2 CH 2 Si (R 1 ) 3-n Xn is obtained by reducing the above compound with a reducing agent.
しかしながら、この方法では最終工程でヨウ素を脱離しているため、目的化合物のヨウ素による着色が懸念される他、脱ヨウ素化反応において環境負荷の高い水素化トリブチル錫等が使用されているという問題がみられる。また、CF2基とCF2基との間にCH2基を有する化合物は、塩基性条件下に弱いことが記載されており、反応条件(合成ルート)が限定されることとなる。However, since iodine is eliminated in the final step in this method, there is a concern that the target compound may be colored by iodine, and that tributyltin hydride having a high environmental load is used in the deiodination reaction. Seen. In addition, it is described that a compound having a CH 2 group between a CF 2 group and a CF 2 group is weak under basic conditions, and the reaction conditions (synthesis route) are limited.
特許文献２には、ビフェニルアルキル基を有するシランカップリング剤Rf(C6H4-C6H4)CH2CH2CH2Si(OCH)3は、350℃以上の高温雰囲気に曝露しても、これら化合物による改質表面の接触角の低下がみられないなどの、すぐれた耐熱性、耐久性、離型性、防汚性を有する化合物であることが記載されている。In Patent Document 2, a silane coupling agent Rf (C 6 H 4 -C 6 H 4 ) CH 2 CH 2 CH 2 Si (OCH) 3 having a biphenylalkyl group is exposed to a high temperature atmosphere of 350 ° C. or higher. Also, it is described that these compounds have excellent heat resistance, durability, releasability, and antifouling properties, such as no decrease in the contact angle of the modified surface due to these compounds.
しかしながら、分子内にビフェニル骨格を有するため常温で固体であることもあって取扱い難い場合があり、また反応試薬としてn-ブチルリチウム等の有機リチウムを使用しており、これは反応性が高く、禁水試薬であって、反応中も反応熱の制御が必要となるなど、低温条件下でゆっくりと滴下する必要があり、ハンドリング性に欠け、大量スケールでの製造には適さない工程がとられている。 However, because it has a biphenyl skeleton in the molecule, it may be difficult to handle because it is solid at room temperature, and it uses organic lithium such as n-butyllithium as a reaction reagent, which is highly reactive, It is a water-free reagent and needs to be dripped slowly under low-temperature conditions, such as the need to control the reaction heat during the reaction, and it lacks handling properties and is not suitable for manufacturing on a large scale. ing.
なお、2官能性オルガノシロキサン基を有する含フッ素アルキルシラン化合物については、特許文献３に記載がみられる。 Note that Patent Document 3 describes a fluorine-containing alkylsilane compound having a bifunctional organosiloxane group.
本発明の目的は、環境負荷の高い金属試薬を使用せず、ヒドロシリル化反応を行う前に原料化合物由来の遊離ヨウ素を除去することが可能であり、またハンドリング性も良好な含フッ素アルキルシラン化合物およびその製造法を提供することにある。 An object of the present invention is to use a fluorine-containing alkylsilane compound that can remove free iodine derived from a raw material compound before carrying out a hydrosilylation reaction without using a metal reagent having a high environmental load, and also has good handling properties. And providing a manufacturing method thereof.
本発明によって、一般式
CF3(CF2)n(CH2CF2)a(CF2CF2)b(CH2)3SiR3-dXd 〔I〕
(ここで、nは3の整数であり、aは1または2、bは2の整数であり、Rは炭素数1〜3のアルコキシ基、含フッ素アルコキシ基またはアルケニル基であり、Xはハロゲンであり、dは0〜3の整数である)で表される含フッ素アルキルシラン化合物が提供される。
According to the invention, the general formula
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 ) 3 SiR 3-d X d (I)
(Where n is an integer of 3 , a is 1 or 2, b is an integer of 2 , R is an alkoxy group having 1 to 3 carbon atoms, a fluorine-containing alkoxy group or an alkenyl group, and X is a halogen atom. And d is an integer of 0 to 3).
この含フッ素アルキルシラン化合物は、一般式
CF3(CF2)n(CH2CF2)a(CF2CF2)bCH2CH=CH2 〔II〕
(ここで、n、a、bは上記定義と同じである)で表されるポリフルオロアルキルアリル化合物を、遷移金属触媒の存在下で、
・アルコキシシランと反応させ、
または
・クロロシランと反応させた後、低級アルコールまたは金属アルケニルと反応させる
ことにより製造される。This fluorine-containing alkylsilane compound has the general formula
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b CH 2 CH = CH 2 (II)
(Where n, a, and b are as defined above), in the presence of a transition metal catalyst,
・ React with alkoxysilane,
Or • It is produced by reacting with chlorosilane and then with lower alcohol or metal alkenyl.
本発明により、Pt系触媒等の遷移金属触媒を用い、ヒドロシリル化反応を行う前に原料化合物由来の遊離ヨウ素を除去することが可能であり、またハンドリング性も良好である含フッ素アルキルシラン化合物が提供される。 According to the present invention, using a transition metal catalyst such as a Pt-based catalyst, it is possible to remove free iodine derived from a raw material compound before performing a hydrosilylation reaction, and a fluorine-containing alkylsilane compound having good handling properties is obtained. Provided.
遷移金属触媒の存在下で、適当なヒドロシリル化剤を付加させた本発明の含フッ素アルキルシラン化合物は、各種基質の表面への化学結合により、そこに撥水撥油性、防汚性などを付与することができ、したがって表面処理剤の有効成分として用いられる。 The fluorine-containing alkylsilane compound of the present invention to which an appropriate hydrosilylating agent is added in the presence of a transition metal catalyst imparts water and oil repellency, antifouling properties, etc. thereto by chemical bonding to the surface of various substrates. Therefore, it is used as an active ingredient of the surface treatment agent.
本発明に係る含フッ素アルキルシラン化合物は、次のような一連の工程を経て、製造される。
(1) CF3(CF2)n(CH2CF2)a(CF2CF2)bI 〔IV〕
に、カルボン酸アリルエステル R´COOCH2CH=CH2を反応させる。
(2) 生成した
CF3(CF2)n(CH2CF2)a(CF2CF2)bCH2CHICH2OCOR´ 〔III〕
に、遷移金属を反応させる。
(3) 生成した
CF3(CF2)n(CH2CF2)a(CF2CF2)bCH2CH=CH2 〔II〕
に、アルコキシシランを反応させ、
またはクロロシランを反応させた後、炭素数1〜3の低級アルコールまたは金属アルケニルと反応させ、
CF3(CF2)n(CH2CF2)a(CF2CF2)b(CH2)3SiR3-dXd 〔I〕
を得る。ここで、炭素数1〜3の低級アルコールとしては、メタノール、エタノール、プロパノール、イソプロパノール等のフッ素非含有アルコールまたはトリフルオロエタノール、テトラフルオロプロパノール、ヘキサフルオロイソプロパノール等の含フッ素アルコールが挙げられる。また、金属アルケニルとしては、アリルマグネシウムクロリド、アリルマグネシウムブロミド等が挙げられる。The fluorine-containing alkylsilane compound according to the present invention is produced through the following series of steps.
(1) CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b I (IV)
And carboxylic acid allyl ester R′COOCH 2 CH═CH 2 is reacted.
(2) Generated
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b CH 2 CHICH 2 OCOR´ [III]
And a transition metal is reacted.
(3) Generated
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b CH 2 CH = CH 2 (II)
To react with alkoxysilane,
Or after reacting chlorosilane, react with lower alcohol or metal alkenyl having 1 to 3 carbon atoms,
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 ) 3 SiR 3-d X d (I)
Get. Here, examples of the lower alcohol having 1 to 3 carbon atoms include fluorine-free alcohols such as methanol, ethanol, propanol and isopropanol, and fluorine-containing alcohols such as trifluoroethanol, tetrafluoropropanol and hexafluoroisopropanol. Examples of the metal alkenyl include allylmagnesium chloride and allylmagnesium bromide.
上記工程(1)で原料化合物として用いられるポリフルオロアルキルアイオダイド〔IV〕は公知の化合物であり、例えば特許文献４に記載されている。 The polyfluoroalkyl iodide [IV] used as the raw material compound in the step (1) is a known compound, and is described in, for example, Patent Document 4.
具体的に用いられるポリフルオロアルキルアイオダイドとしては、次のような化合物が例示される。
CF3(CF2)(CH2CF2)I
CF3(CF2)(CH2CF2)2I
CF3(CF2)2(CH2CF2)I
CF3(CF2)2(CH2CF2)2I
CF3(CF2)3(CH2CF2)I
CF3(CF2)3(CH2CF2)2I
CF3(CF2)(CH2CF2)(CF2CF2)I
CF3(CF2)(CH2CF2)(CF2CF2)2I
CF3(CF2)2(CH2CF2)(CF2CF2)I
CF3(CF2)2(CH2CF2)(CF2CF2)2I
CF3(CF2)3(CH2CF2)2(CF2CF2)I
CF3(CF2)3(CH2CF2)2(CF2CF2)2ISpecific examples of polyfluoroalkyl iodides include the following compounds.
CF 3 (CF 2 ) (CH 2 CF 2 ) I
CF 3 (CF 2 ) (CH 2 CF 2 ) 2 I
CF 3 (CF 2 ) 2 (CH 2 CF 2 ) I
CF 3 (CF 2 ) 2 (CH 2 CF 2 ) 2 I
CF 3 (CF 2 ) 3 (CH 2 CF 2 ) I
CF 3 (CF 2 ) 3 (CH 2 CF 2 ) 2 I
CF 3 (CF 2 ) (CH 2 CF 2 ) (CF 2 CF 2 ) I
CF 3 (CF 2 ) (CH 2 CF 2 ) (CF 2 CF 2 ) 2 I
CF 3 (CF 2 ) 2 (CH 2 CF 2 ) (CF 2 CF 2 ) I
CF 3 (CF 2 ) 2 (CH 2 CF 2 ) (CF 2 CF 2 ) 2 I
CF 3 (CF 2 ) 3 (CH 2 CF 2 ) 2 (CF 2 CF 2 ) I
CF 3 (CF 2 ) 3 (CH 2 CF 2 ) 2 (CF 2 CF 2 ) 2 I
これらのポリフルオロアルキルアイオダイドと反応する少過剰モル数のカルボン酸アリルエステル R´COOCH2CH=CH2としては、R´が炭素数1〜3のアルキル基を有するもの、好ましくは酢酸アリルが用いられる。この反応は、約70〜120℃の温度で、ポリフルオロアルキルアイオダイドに対して約0.001〜1.0モル％のラジカル開始剤、例えばジ-n-プロピル パーオキシジカーボネート、ジイソプロピル パーオキシジカーボネート、ジ(4-第3ブチルシクロヘキシル) パーオキシジカーボネート、ジ(2-エトキシエチル) パーオキシジカーボネート、ジ(2-エトキシヘキシル) パーオキシジカーボネート、ジ(3-メトキシブチル) パーオキシジカーボネート、ジ第2ブチル パーオキシジカーボネート等のパーオキシジカーボネートの存在下で、ラジカル付加反応として行われる。Carboxylic acid allyl ester in a small excess number of moles that react with these polyfluoroalkyl iodides R′COOCH 2 CH═CH 2 includes those in which R ′ has an alkyl group having 1 to 3 carbon atoms, preferably allyl acetate. Used. This reaction is carried out at a temperature of about 70-120 ° C. with about 0.001-1.0 mol% of a radical initiator relative to the polyfluoroalkyl iodide, such as di-n-propyl peroxydicarbonate, diisopropyl peroxydicarbonate, (4-tert-butylcyclohexyl) peroxydicarbonate, di (2-ethoxyethyl) peroxydicarbonate, di (2-ethoxyhexyl) peroxydicarbonate, di (3-methoxybutyl) peroxydicarbonate, di The reaction is carried out as a radical addition reaction in the presence of peroxydicarbonate such as sec-butyl peroxydicarbonate.
生成したカルボン酸アリル付加体〔III〕は、遷移金属、例えばZn、Mg、Mn、Cu等の金属単体またはその試薬、好ましくはZn単体を用い、ヨウ素の還元とオレフィン化反応として行われる。カルボン酸アリル付加体および遷移金属は、それぞれメタノール、エタノール等の溶媒と共に用いられる。また、遷移金属は、カルボン酸アリル付加体に対し少過剰のモル比で用いられる。 The produced allyl carboxylic acid adduct [III] is obtained as a reduction of iodine and an olefination reaction using a transition metal, for example, a single metal such as Zn, Mg, Mn, or Cu or a reagent thereof, preferably Zn. The carboxylic acid allyl adduct and the transition metal are used together with a solvent such as methanol and ethanol, respectively. Further, the transition metal is used in a molar excess with respect to the carboxylic acid allyl adduct.
生成したポリフルオロアルキルアリル化合物〔II〕
CF3(CF2)n(CH2CF2)a(CF2CF2)bCH2CH=CH2
は、アルコキシシランと反応させることにより、目的化合物である
CF3(CF2)n(CH2CF2)a(CF2CF2)b(CH2)3SiR3-dXd 〔I〕
を与える。The resulting polyfluoroalkylallyl compound [II]
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b CH 2 CH = CH 2
Is the target compound by reacting with alkoxysilane
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 ) 3 SiR 3-d X d (I)
give.
アルコキシシランとしては、トリメトキシシラン、トリエトキシシラン、トリプロポキシシラン等の炭素数1〜3の低級アルコキシ基を有するものが用いられる。アルコキシシランは、末端アリル化合物に対し少過剰のモル比で用いられる。 As the alkoxysilane, those having a lower alkoxy group having 1 to 3 carbon atoms such as trimethoxysilane, triethoxysilane, and tripropoxysilane are used. Alkoxysilane is used in a small excess molar ratio with respect to the terminal allyl compound.
反応は、約25〜100℃の反応温度で、遷移金属触媒の存在下で行われる。遷移金属触媒、好ましくはPt系またはRh系触媒としては、例えば塩化白金酸H2PtCl16・6H2O、カルステッド触媒Pt・CH2=CHSiMe2OMe2OSiCH=CH2、ウィルキンソン触媒 RhCl〔P(C6H5)3〕3、RhH〔P(C6H5)3〕4等が用いられる。触媒は、ポリフルオロアルキルアリル化合物に対して約0.001〜10モル％程度用いられる。The reaction is carried out in the presence of a transition metal catalyst at a reaction temperature of about 25-100 ° C. Examples of transition metal catalysts, preferably Pt or Rh catalysts, include chloroplatinic acid H 2 PtCl 16 · 6H 2 O, karsted catalyst Pt · CH 2 = CHSiMe 2 OMe 2 OSiCH = CH 2 , Wilkinson's catalyst RhCl [P ( C 6 H 5 ) 3 ] 3 , RhH [P (C 6 H 5 ) 3 ] 4 etc. are used. About 0.001 to 10 mol% of the catalyst is used with respect to the polyfluoroalkylallyl compound.
ポリフルオロアルキルアリル化合物〔II〕はまた、少過剰モル比のクロロシランと反応させた後、炭素数1〜3の低級アルコールまたは金属アルケニルと反応させることによっても、目的化合物を得ることができる。クロロシランとの反応は、約25〜100℃の反応温度で、上記の如き遷移金属触媒を、ポリフルオロアルキルアリル化合物に対して約0.001〜10モル％程度の割合で用い、末端基を-SiCl3化した後、炭素数1〜3の低級アルコールまたは金属アルケニルを約25〜120℃の反応温度で反応させる。低級アルコールとして、フッ素非含有アルコールを用いた場合にはRはアルコキシ基となり、含フッ素アルコールを用いた場合にはRは含フッ素アルコキシ基となる。この際、末端-SiCl3基に対し3当量未満の低級アルコールまたは金属アルケニルを反応させることにより末端基中にハロゲンを残存させることができる。The polyfluoroalkylallyl compound [II] can also be obtained by reacting with a small excess molar ratio of chlorosilane and then with a lower alcohol or metal alkenyl having 1 to 3 carbon atoms. The reaction with chlorosilane is performed at a reaction temperature of about 25 to 100 ° C., using the transition metal catalyst as described above at a ratio of about 0.001 to 10 mol% with respect to the polyfluoroalkylallyl compound, and the terminal group is —SiCl 3. Then, the lower alcohol or metal alkenyl having 1 to 3 carbon atoms is reacted at a reaction temperature of about 25 to 120 ° C. When a fluorine-free alcohol is used as the lower alcohol, R becomes an alkoxy group, and when a fluorine-containing alcohol is used, R becomes a fluorine-containing alkoxy group. At this time, halogen can be left in the terminal group by reacting less than 3 equivalents of lower alcohol or metal alkenyl with respect to the terminal —SiCl 3 group.
得られた含フッ素アルキルシラン化合物は、水との接触角が大きく、すなわち表面自由エネルギーが低いことを示しており、離型性や防汚性が高いことを示している。 The obtained fluorine-containing alkylsilane compound has a large contact angle with water, that is, indicates that the surface free energy is low, indicating that the releasability and antifouling property are high.
次に、実施例について本発明を説明する。 Next, the present invention will be described with reference to examples.
参考例１
不活性窒素ガスの存在下で、容量1000mlの三口フラスコに滴下ロートおよびジムロートを取り付け、三口フラスコ中にポリフルオロアルキルアイオダイドCF3(CF2)3(CH2CF2)(CF2CF2)2I 400g(0.66モル)を、また滴下ロートに酢酸アリルCH2=CHCH2OCOCH3 74.0ml(0.69モル)およびラジカル開始剤P-16〔ジ(第3ブチルシクロヘキシル) パーオキシジカーボネート〕2.61g(6.5ミリモル)をそれぞれ入れ、三口フラスコ内を攪拌し、その温度が90℃になったところで滴下ロートからの滴下を開始し、反応を開始させた。反応後半で、発熱が弱くなってきたので、P-16 0.09gを追加して反応を継続させた。Reference example 1
In the presence of inert nitrogen gas, a dropping funnel and a Dim funnel are attached to a 1000 ml three-necked flask, and polyfluoroalkyl iodide CF 3 (CF 2 ) 3 (CH 2 CF 2 ) (CF 2 CF 2 ) is placed in the three-necked flask. 2 I 400 g (0.66 mol), allyl acetate CH 2 = CHCH 2 OCOCH 3 74.0 ml (0.69 mol) and radical initiator P-16 (di (tert-butylcyclohexyl) peroxydicarbonate) 2.61 g in a dropping funnel (6.5 mmol) was added, and the inside of the three-necked flask was stirred. When the temperature reached 90 ° C., dropping from the dropping funnel was started to initiate the reaction. In the second half of the reaction, the exotherm became weak, so P-16 0.09 g was added and the reaction was continued.
発熱終了2時間後室温まで冷却し、反応混合物について、NMRとガスクロマトグラフィーで反応生成物の構造と転化率の確認を行った。目的とする生成物の転化率は87％であった。減圧蒸留で未反応各原料化合物を除き、淡黄色固体状の酢酸アリル付加体391g(95％GC、収率84％)を得た。
CF3CF2CF2CF2CH2CF2CF2CF2CF2CF2CH2CHICH2OCOCH3
19F-NMR(d-アセトン，282.65Hz)：
-80.2：CF 3 CF2CF2CF2CH2CF2CF2CF2CF2CF2CH2-
-110.3：CF3CF2CF2CF 2 CH2CF 2 CF2CF2CF2CF2CH2-
-112.2：CF3CF2CF2CF2CH2CF2CF2CF2CF2CF 2 CH2-
-120.2：CF3CF2CF2CF2CH2CF2CF 2 CF2CF2CF2CH2-
-121.9：CF3CF2CF2CF2CH2CF2CF2CF 2 CF2CF2CH2-
-122.5：CF3CF2CF 2 CF2CH2CF2CF2CF2CF 2 CF2CH2-
-124.9：CF3CF 2 CF2CF2CH2CF2CF2CF2CF2CF2CH2-Two hours after the end of exotherm, the reaction mixture was cooled to room temperature, and the structure and conversion rate of the reaction product were confirmed by NMR and gas chromatography. The conversion of the desired product was 87%. Unreacted raw material compounds were removed by distillation under reduced pressure to obtain 391 g of a light yellow solid allyl acetate adduct (95% GC, 84% yield).
CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2 CHICH 2 OCOCH 3
19 F-NMR (d-acetone, 282.65 Hz):
-80.2: C F 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
-110.3: CF 3 CF 2 CF 2 C F 2 CH 2 C F 2 CF 2 CF 2 CF 2 CF 2 CH 2 -
-112.2: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 C F 2 CH 2-
-120.2: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 C F 2 CF 2 CF 2 CF 2 CH 2 -
-121.9: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 C F 2 CF 2 CF 2 CH 2-
-122.5: CF 3 CF 2 C F 2 CF 2 CH 2 CF 2 CF 2 CF 2 C F 2 CF 2 CH 2 -
-124.9: CF 3 C F 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
参考例２
不活性窒素ガスの存在下で、容量500mlの三口フラスコに滴下ロートおよびジムロートを取り付けた。フラスコ中にメタノール180mlおよびZn 20.1g(0.33モル)を、また滴下ロートに参考例１で得られた酢酸アリル付加体200g(0.28モル)およびメタノール20mlをそれぞれ入れ、三口フラスコ内を攪拌し、還流し始めたところで滴下ロートからの滴下を開始し、反応を開始させた。滴下後2時間攪拌した後室温まで冷却し、反応を停止させた。Reference example 2
In the presence of inert nitrogen gas, a dropping funnel and a Dim funnel were attached to a three-neck flask having a volume of 500 ml. Put 180 ml of methanol and 20.1 g (0.33 mol) of Zn in the flask, and add 200 g (0.28 mol) of allyl acetate adduct obtained in Reference Example 1 and 20 ml of methanol to the dropping funnel. When starting, dropping from the dropping funnel was started to start the reaction. After dropping, the mixture was stirred for 2 hours and then cooled to room temperature to stop the reaction.
反応混合物の分相が不明瞭であったので、メタノールを留去して分液を試みたが、エマルジョンが形成された。そこで、沈殿物をろ過後に再度分液、乾燥を行って、目的化合物である透明な液状の末端アリル化合物を123.7g(92％GC、収率77％)を得た。この反応では、出発原料の純度とは関係なく、再現性良く反応が進行していることが確認された。次に、減圧蒸留を行って、その純度を97％GCまで上げた。
CF3CF2CF2CF2CH2CF2CF2CF2CF2CF2CH2CH=CH2
1H-NMR(d-アセトン，300.4Hz)：
δ5.9〜5.7：-CF2CH2CH=CH2(m)
5.4：-CF2CH2CH=CH 2 (m)
3.6：-CF2CH 2 CF2-(quin)
3.0：-CF2CH 2 CH=CH2(dt)
19F-NMR(d-アセトン，282.65Hz)：
-80.2：CF 3 CF2CF2CF2CH2CF2CF2CF2CF2CF2CH2-
-110.2：CF3CF2CF2CF 2 CH2CF 2 CF2CF2CF2CF2CH2-
-111.9：CF3CF2CF2CF2CH2CF2CF2CF2CF2CF 2 CH2-
-120.3：CF3CF2CF2CF2CH2CF2CF 2 CF2CF2CF2CH2-
-121.9：CF3CF2CF2CF2CH2CF2CF2CF 2 CF2CF2CH2-
-122.1：CF3CF2CF2CF2CH2CF2CF2CF2CF 2 CF2CH2-
-122.5：CF3CF2CF 2 CF2CH2CF2CF2CF2CF2CF2CH2-
-124.9：CF3CF 2 CF2CF2CH2CF2CF2CF2CF2CF2CH2-Since the phase separation of the reaction mixture was unclear, methanol was distilled off for liquid separation, but an emulsion was formed. Therefore, the precipitate was filtered and then separated and dried again to obtain 123.7 g (92% GC, yield 77%) of a transparent liquid terminal allyl compound as the target compound. In this reaction, it was confirmed that the reaction proceeded with good reproducibility regardless of the purity of the starting material. Next, vacuum distillation was performed to increase the purity to 97% GC.
CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2 CH = CH 2
1 H-NMR (d-acetone, 300.4 Hz):
δ5.9~5.7: -CF 2 CH 2 C H = CH 2 (m)
5.4: -CF 2 CH 2 CH = C H 2 (m)
3.6 ： -CF 2 C H 2 CF 2- (quin)
3.0: -CF 2 C H 2 CH = CH 2 (dt)
19 F-NMR (d-acetone, 282.65 Hz):
-80.2: C F 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
-110.2: CF 3 CF 2 CF 2 C F 2 CH 2 C F 2 CF 2 CF 2 CF 2 CF 2 CH 2 -
-111.9: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 C F 2 CH 2-
-120.3: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 C F 2 CF 2 CF 2 CF 2 CH 2 -
-121.9: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 C F 2 CF 2 CF 2 CH 2-
-122.1: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 C F 2 CF 2 CH 2-
-122.5: CF 3 CF 2 C F 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2 -
-124.9: CF 3 C F 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
実施例１
不活性窒素ガスの存在下で、容量100mlの三口フラスコにセプタムおよびジムロートを取り付けた。三口フラスコ中に、参考例２で得られた末端アリル化合物20.0g(0.04モル)およびトリエトキシシラン5.8ml(0.05モル)を入れ、三口フラスコ内を攪拌し、80℃まで昇温させた。昇温後、塩化白金酸 H2PtCl16・6H2O 20mg(末端アリル化合物に対して0.05モル％)を加えて、反応を開始させた。一昼夜攪拌した後、室温まで冷却して反応を停止させた。Example 1
In the presence of inert nitrogen gas, a septum and a Dimroth were attached to a 100 ml three-necked flask. In the three-necked flask, 20.0 g (0.04 mol) of the terminal allyl compound obtained in Reference Example 2 and 5.8 ml (0.05 mol) of triethoxysilane were added, and the inside of the three-necked flask was stirred and heated to 80 ° C. After the temperature increase, 20 mg of chloroplatinic acid H 2 PtCl 16 · 6H 2 O (0.05 mol% with respect to the terminal allyl compound) was added to initiate the reaction. After stirring for a whole day and night, the reaction was stopped by cooling to room temperature.
反応混合物を減圧蒸留して、目的化合物である透明な液状の末端トリエトキシシリルプロピル誘導体を10.7g(収率42％)得た。
CF3CF2CF2CF2CH2CF2CF2CF2CF2CF2CH2CH2CH2Si(OCH2CH3)3
1H-NMR(CDCl3，300.4Hz)：
δ3.83：-Si(OCH 2 CH3)3(q)
2.92：-CF2CH 2 CF2-(quin)
2.13：-CH 2 CH2CH2-(tt)
1.75：-CH2CH 2 CH2-(m)
1.21：-Si(OCH2CH 3 )3(t)
0.70：-CH2CH2CH 2 -(t)
19F-NMR(CDCl3，282.65Hz)：
-82.2：CF 3 CF2CF2CF2CH2CF2CF2CF2CF2CF2CH2-
-113.2：CF3CF2CF2CF 2 CH2CF 2 CF2CF2CF2CF2CH2-
-115.6：CF3CF2CF2CF2CH2CF2CF2CF2CF2CF 2 CH2-
-122.5：CF3CF2CF2CF2CH2CF2CF 2 CF2CF2CF2CH2-
-124.0〜-126.0：CF3CF2CF 2 CF2CH2CF2CF2CF 2 CF 2 CF2CH2-
-127.0：CF3CF 2 CF2CF2CH2CF2CF2CF2CF2CF2CH2-The reaction mixture was distilled under reduced pressure to obtain 10.7 g (yield 42%) of a transparent liquid terminal triethoxysilylpropyl derivative as a target compound.
CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2 CH 2 CH 2 Si (OCH 2 CH 3 ) 3
1 H-NMR (CDCl 3 , 300.4 Hz):
δ3.83: -Si (OC H 2 CH 3 ) 3 (q)
2.92: -CF 2 C H 2 CF 2- (quin)
2.13: -C H 2 CH 2 CH 2- (tt)
1.75 ： -CH 2 C H 2 CH 2- (m)
1.21: -Si (OCH 2 C H 3 ) 3 (t)
0.70: -CH 2 CH 2 C H 2- (t)
19 F-NMR (CDCl 3 , 282.65 Hz):
-82.2: C F 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
-113.2: CF 3 CF 2 CF 2 C F 2 CH 2 C F 2 CF 2 CF 2 CF 2 CF 2 CH 2 -
-115.6: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 C F 2 CH 2-
-122.5: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 C F 2 CF 2 CF 2 CF 2 CH 2 -
-124.0~-126.0: CF 3 CF 2 C F 2 CF 2 CH 2 CF 2 CF 2 C F 2 C F 2 CF 2 CH 2 -
-127.0: CF 3 C F 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
実施例２
不活性窒素ガスの存在下で、容量100mlの三口フラスコにセプタムおよびジムロートを取り付けた。三口フラスコ中に、参考例２で得られた末端アリル化合物20.0g(0.04モル)およびトリクロロシランSiHCl3 4.8ml (0.05ミリモル)を入れ、三口フラスコ内を攪拌し、40℃まで昇温させた。昇温後、カルステッド触媒(Pt・CH2=CHSiMe2OMe2SiCH=CH2)14.5mg(末端アリル化合物に対して0.1モル％)を加えて、反応を開始させた。油浴温度を徐々に上げて行き、100℃となったところで温度を一定とし、一昼夜攪拌した。NMRによって原料の消失を確認した後、室温に冷却して反応を停止させた。Example 2
In the presence of inert nitrogen gas, a septum and a Dimroth were attached to a 100 ml three-necked flask. In the three-necked flask, 20.0 g (0.04 mol) of the terminal allyl compound obtained in Reference Example 2 and 4.8 ml (0.05 mmol) of trichlorosilane SiHCl 3 were added, and the inside of the three-necked flask was stirred and heated to 40 ° C. After the temperature rise, the addition of Karstedt catalyst (Pt · CH 2 = CHSiMe 2 OMe 2 SiCH = CH 2) 14.5mg (0.1 mol% with respect to terminal allyl compounds), to initiate the reaction. The oil bath temperature was gradually raised, and when it reached 100 ° C., the temperature was kept constant and stirred for a whole day and night. After confirming disappearance of the raw materials by NMR, the reaction was stopped by cooling to room temperature.
次に、この反応で生成した末端トリクロロシリル体を、精製せずにそこにオルトギ酸メチルCH(OCH3)3 3.7ml(0.05モル)を加えて40℃に加熱し、反応溶液が均一になったことを確認した後、メタノール5.6ml(0.15モル)を加えて1時間攪拌し、低沸成分の留去と減圧蒸留により、目的化合物である透明な液状の末端トリメトキシシリルプロピル誘導体を10.10g(収率41％)得た。
CF3CF2CF2CF2CH2CF2CF2CF2CF2CF2CH2CH2CH2Si(OCH3)3
1H-NMR(CDCl3，300.4Hz)：
δ3.58：-Si(OCH 3)3(s)
2.92：-CF2CH 2 CF2-(quin)
2.12：-CH 2 CH2CH2-(tt)
1.74：-CH2CH 2 CH2-(m)
0.72：-CH2CH2CH 2 -(t)
19F-NMR(CDCl3，282.65Hz)：
-82.1：CF 3 CF2CF2CF2CH2CF2CF2CF2CF2CF2CH2-
-113.2：CF3CF2CF2CF 2 CH2CF 2 CF2CF2CF2CF2CH2-
-115.6：CF3CF2CF2CF2CH2CF2CF2CF2CF2CF 2 CH2-
-122.5：CF3CF2CF2CF2CH2CF2CF 2 CF2CF2CF2CH2-
-124.0〜-126.0：CF3CF2CF 2 CF2CH2CF2CF2CF 2 CF 2 CF2CH2-
-127.0：CF3CF 2 CF2CF2CH2CF2CF2CF2CF2CF2CH2-Next, without purifying the terminal trichlorosilyl product produced by this reaction, methyl orthoformate CH (OCH 3 ) 3 3.7 ml (0.05 mol) was added thereto and heated to 40 ° C., and the reaction solution became homogeneous. After confirming that, 5.6 ml (0.15 mol) of methanol was added and stirred for 1 hour, and 10.10 g of a transparent liquid terminal trimethoxysilylpropyl derivative as the target compound was obtained by distilling off the low boiling component and distillation under reduced pressure. (Yield 41%) was obtained.
CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2 CH 2 CH 2 Si (OCH 3 ) 3
1 H-NMR (CDCl 3 , 300.4 Hz):
δ3.58: -Si (OC H 3 ) 3 (s)
2.92: -CF 2 C H 2 CF 2- (quin)
2.12: -C H 2 CH 2 CH 2- (tt)
1.74: -CH 2 C H 2 CH 2- (m)
0.72: -CH 2 CH 2 C H 2- (t)
19 F-NMR (CDCl 3 , 282.65 Hz):
-82.1: C F 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
-113.2: CF 3 CF 2 CF 2 C F 2 CH 2 C F 2 CF 2 CF 2 CF 2 CF 2 CH 2 -
-115.6: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 C F 2 CH 2-
-122.5: CF 3 CF 2 CF 2 CF 2 CH 2 CF 2 C F 2 CF 2 CF 2 CF 2 CH 2 -
-124.0~-126.0: CF 3 CF 2 C F 2 CF 2 CH 2 CF 2 CF 2 C F 2 C F 2 CF 2 CH 2 -
-127.0: CF 3 C F 2 CF 2 CF 2 CH 2 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
比較例
実施例２において、末端アリル化合物の代りにC6F13CH2CH=CH2 30g(0.08モル)を用い、またカルステッド触媒量を31.6g(末端アリル化合物に対して0.1モル％)に、トリクロロシラン量を10.1ml(0.105モル)に、メタノール量を12ml(0.30モル)に、オルトギ酸メチル量を7.7ml(0.1モル)に、トリクロロシランとの反応温度を60℃にそれぞれ変更して用い、透明な液状の末端トリメトキシシリルプロピル誘導体を31.66g(収率79％)を得た。
CF3CF2CF2CF2CF2CF2CH2CH2CH2-Si(OCH3)3
1H-NMR(CDCl3，300.4Hz)：
δ3.63：-Si(OCH 3 )3(s)
2.10：-CH 2 CH2CH2-(quin)
1.81：-CH2CH 2 CH2-(m)
1.74：-CH2CH2CH 2 -(t)
19F-NMR(CDCl3，282.65Hz)：
-82.0：CF 3 CF2CF2CF2CF2CF2CH2-
-115.6：CF3CF2CF2CF2CF2CF 2 CH2-
-123.1：CF3CF2CF2CF2CF 2 CF2CH2-
-124.0：CF3CF2CF 2 CF2CF2CF2CH2-
-124.8：CF3CF2CF2CF 2 CF2CF2CH2-
-127.3：CF3CF 2 CF2CF2CF2CF2CH2-Comparative Example In Example 2, C 6 F 13 CH 2 CH═CH 2 30 g (0.08 mol) was used instead of the terminal allyl compound, and the amount of the Calsted catalyst was 31.6 g (0.1 mol% based on the terminal allyl compound). The amount of trichlorosilane was changed to 10.1 ml (0.105 mol), the amount of methanol to 12 ml (0.30 mol), the amount of methyl orthoformate to 7.7 ml (0.1 mol), and the reaction temperature with trichlorosilane was changed to 60 ° C. Using 31.66 g (yield 79%) of a transparent liquid terminal trimethoxysilylpropyl derivative was obtained.
CF 3 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2 CH 2 CH 2 -Si (OCH 3 ) 3
1 H-NMR (CDCl 3 , 300.4 Hz):
δ3.63: -Si (OC H 3 ) 3 (s)
2.10: -C H 2 CH 2 CH 2- (quin)
1.81: -CH 2 C H 2 CH 2- (m)
1.74: -CH 2 CH 2 C H 2- (t)
19 F-NMR (CDCl 3 , 282.65 Hz):
-82.0: C F 3 CF 2 CF 2 CF 2 CF 2 CF 2 CH 2-
-115.6: CF 3 CF 2 CF 2 CF 2 CF 2 C F 2 CH 2-
-123.1: CF 3 CF 2 CF 2 CF 2 C F 2 CF 2 CH 2-
-124.0: CF 3 CF 2 C F 2 CF 2 CF 2 CF 2 CH 2 -
-124.8: CF 3 CF 2 CF 2 C F 2 CF 2 CF 2 CH 2 -
-127.3: CF 3 C F 2 CF 2 CF 2 CF 2 CF 2 CH 2-
参考例３
基材：松浪硝子(プレクリン水縁磨きS7213)
溶液：バートレル100g、試料0.1g、0.05M塩酸40mg、メタノール5ml
塗布条件：スピンコート、0.5g、1000rpm、30秒間
乾燥条件：23℃、50％RH
上記条件下での各試料の接触角測定結果は、次の表に示される。
表
接触角(°)
No. 試料 H 2 O ヘキサデカン
１ 実施例１ 108 69
２ 〃 ２ 108 69
３ C6F13CH2CH2Si(OEt)3 106 63
４ 比較例 106 73
５ C8F17CH2CH2Si(OEt)3 109 69 Reference example 3
Base material: Matsunami Glass (Preclin water edge polish S7213)
Solution: Vertrel 100g, sample 0.1g, 0.05M hydrochloric acid 40mg, methanol 5ml
Application condition: Spin coating, 0.5g, 1000rpm, 30 seconds Drying condition: 23 ℃, 50% RH
The contact angle measurement results for each sample under the above conditions are shown in the following table.
table
Contact angle (°)
No. Sample H 2 O Hexadecane 1 Example 1 108 69
2 〃 2 108 69
3 C 6 F 13 CH 2 CH 2 Si (OEt) 3 106 63
4 Comparative Example 106 73
5 C 8 F 17 CH 2 CH 2 Si (OEt) 3 109 69
Claims (5)
CF3(CF2)n(CH2CF2)a(CF2CF2)b(CH2)3SiR3-dXd 〔I〕
(ここで、nは3の整数であり、aは1または2、bは2の整数であり、Rは炭素数1〜3のアルコキシ基、含フッ素アルコキシ基またはアルケニル基であり、Xはハロゲンであり、dは0〜3の整数である)で表される含フッ素アルキルシラン化合物。 General formula
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b (CH 2 ) 3 SiR 3-d X d (I)
(Where n is an integer of 3 , a is 1 or 2, b is an integer of 2 , R is an alkoxy group having 1 to 3 carbon atoms, a fluorine-containing alkoxy group or an alkenyl group, and X is a halogen atom. And d is an integer of 0 to 3).
CF3(CF2)n(CH2CF2)a(CF2CF2)bCH2CH=CH2 〔II〕
(ここで、nは3の整数であり、aは1または2、bは2の整数である）で表されるポリフルオロアルキルアリル化合物を、遷移金属触媒の存在下で、炭素数1〜3の低級アルキル基を有するアルコキシシランと反応させることを特徴とする請求項１記載の含フッ素アルキルシラン化合物の製造法。 General formula
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b CH 2 CH = CH 2 (II)
(Where n is an integer of 3 , a is 1 or 2, and b is an integer of 2 ) in the presence of a transition metal catalyst, The method for producing a fluorine-containing alkylsilane compound according to claim 1, which comprises reacting with an alkoxysilane having a lower alkyl group.
CF3(CF2)n(CH2CF2)a(CF2CF2)bCH2CH=CH2 〔II〕
(ここで、nは3の整数であり、aは1または2、bは2の整数である）で表されるポリフルオロアルキルアリル化合物を、遷移金属触媒の存在下で、クロロシランと反応させた後、炭素数1〜3の低級アルコールまたは金属アルケニルと反応させることを特徴とする請求項１記載の含フッ素アルキルシラン化合物の製造法。 General formula
CF 3 (CF 2 ) n (CH 2 CF 2 ) a (CF 2 CF 2 ) b CH 2 CH = CH 2 (II)
(Where n is an integer of 3 , a is 1 or 2, and b is an integer of 2 ), and a polyfluoroalkylallyl compound represented by the above was reacted with chlorosilane in the presence of a transition metal catalyst. The method for producing a fluorine-containing alkylsilane compound according to claim 1, which is subsequently reacted with a lower alcohol or metal alkenyl having 1 to 3 carbon atoms.
A surface treatment agent comprising the fluorine-containing alkylsilane compound according to claim 1 as an active ingredient.
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